Highlights
Case Scenario 1
Mr. Bolton is a 46-year-old male who has been admitted with dehydration, shortness of breath and dyspnoea over the last two days which has got progressively worse. He has no other significant past medical history. Vital signs are: T 37, R is 26, P 84, BP 130/90 and his SpO2 is 93%. The doctor orders a chest X-ray which shows consolidation of fluid on his left lower lung and ABGs. The doctor diagnoses pneumonia and prescribes oxygen at 6l via a Hudson mask and normal saline intravenous fluids for dehydration.
1. How does the diagnosis of a left lower lobe pneumonia compromise the stages of respiration and gas transport to cells, tissues and organs?
2. Why has the doctor ordered an arterial blood gas and how will the blood results determine respiratory acidosis or alkalosis?
3. Why is shortness of breath and dyspnoea common symptoms of pneumonia and where is the respiratory control centre located?
4. What impact will administration of oxygen have on Mr. Bolton?
5. Why might Mr. Bolton have been dehydrated and how will the intravenous fluids assist in hydrating the body?
6. How will homeostatic mechanisms (osmosis, diffusion and active transport) maintain a constant level of body fluids for Mr Bolton?
Case Scenario 2
Mr Yang is an 80-year-old man with partial deafness, who has suffered a second MI day three post admission. On admission, he was diagnosed with an anterior MI and was admitted to the acute care ward where his coronary spasm had been stabilised. Mr. Yang has now been transferred to the Intensive Care/High Dependency Unit for ongoing management of a severe chest infection secondary to acute pulmonary oedema.
Atrial fibrillation has also developed at this time with Mr. Yang experiencing an irregular pulse rate fluctuating between 109 and 125 beats per minute.
Mr. Yang has been order the following treatment interventions by the medical officer:
Rx
- PICC line and peripheral IVC
- fluids - Hartmann’s solution 1 litre over 6 hours;
- IDC
- CPAP
- chest x ray and repeat ECG
- O2 4l via a Hudson mask and 2nd hourly chest physiotherapy
Lasix 80mg IV bd; Flucloxacillin 1gm IV QID; Digoxin infusion; Ventolin Nebulizer 4th hourly.
7. How will the pharmacological treatments ordered, help stabilise Mr. Yang’s health status?
8. How will CPAP assist Mr. Yang in his recovery?
9. What are the indications for insertion of an indwelling catheter for Mr. Yang, and are there any special precautions or risks associated with this procedure of male catheterisation?
10. How would you clinically assess Mr. Yang to determine his level of hearing sensory deficit?
Case Scenario 3
Jane Oliver is a 79-year-old patient who has been admitted to hospital following a fall at home the previous evening. She fell while descending the front stairs of her home and was found on the steps the following morning by a neighbour. She has bruising and skin tear to her right arm, a painful left hip and hypothermia. Jane has a past medical history of Type 1 diabetes, hyperlipidaemia and hypertension and wears glasses for reading. Jane lives alone as her husband has recently died and she does not have any family who live close by but occasionally her neighbour pops in to visit her at home.
11. Explain what might have caused Jane’s hypothermia and then describe what occurs in the body to regulate body temperature and maintain homeostasis. (Min 100 words)
12. Explain what might have caused Janes Type 1 Diabetes and then describe what occurs in the body to regulate blood glucose and maintain homeostasis.
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